Empire series

The Complete Empire Series is a 1994 Doom mapset by Tim Willits. These maps later became part of the Raven series with slightly updated designs. It was uploaded to the /idgames archive in 2005 by FunDuke.

Levels

 * E1M1
 * E1M2
 * E1M3
 * E1M4

Built-in demo
E1M1 (EMPIRE1.WAD) features a single built-in demo, DEMO1, by the author. It requires Doom v1.2 to be viewed and runs for 2:14.74 (4716 tics), showing off the level on Hurt me plenty.